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Method for online analytical processing (OLAP)

  • US 7,340,476 B2
  • Filed: 09/11/2003
  • Issued: 03/04/2008
  • Est. Priority Date: 10/18/2002
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented method for generating an n-dimensional matrix presentation of at least part of an rn-dimensional database comprising data records and a plurality of key dimensions, each key dimension comprising a plurality of data value fields, each data value field having real data therein, said method comprising:

  • calculating a sorting sequence of fact numbers, said fact numbers identifying the data records;

    calculating entry points for each dimension of the n-dimensional matrix presentation, each calculated entry point calculated to be linked with a corresponding fact number of the sorting sequence;

    calculating a cardinality of the n-dimensional matrix presentation in dependence on the calculated sorting sequence and the calculated corresponding entry points; and

    generating the n-dimensional matrix presentation based on the calculated cardinality and the calculated entry points.

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